Hi, just some thoughts.
I did not care for the idea of power wash on a vinyl house.
The sales agent recommended a firm that does not use power wash, they claimed, using soft mops and towels.
We came home and there they were, power washing. So I kept my cool and paid them. Later, I found that there was extensive screen damage, also water seeping out of the lap siding . So very high pressure water at very high velocity is hitting the siding, it definitely is forcing its way up and behind and into the wood sheeting and can cause DRY ROT TO SHOW UP SOMEDAY.!!!! So now, we just mix some liquid detergent with some bleach, spray it on with a garden sprayer, then hose it and soft brush it and it looks like really good. No Power Wash for us.
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